164630239 has 2 divisors, whose sum is σ = 164630240. Its totient is φ = 164630238.

The previous prime is 164630201. The next prime is 164630267. The reversal of 164630239 is 932036461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164630239 - 2¹³ = 164622047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164630639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82315119 + 82315120.

It is an arithmetic number, because the mean of its divisors is an integer number (82315120).

Almost surely, 2^164630239 is an apocalyptic number.

164630239 is a deficient number, since it is larger than the sum of its proper divisors (1).

164630239 is an equidigital number, since it uses as much as digits as its factorization.

164630239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 164630239 is about 12830.8315786624. The cubic root of 164630239 is about 548.0706381938.

The spelling of 164630239 in words is "one hundred sixty-four million, six hundred thirty thousand, two hundred thirty-nine".